p>4) Abduction/ Adduction machines- This is the one where you sit with your legs spread and strapped into the machine. You perform this weight training exercise by opening up or spreading your legs and then closing them. This is another isolation movement which will do nothing to build muscle. On top of that, you will look like a girl if you do it.

5) Abdominal Crunch Machines- The

When it comes to constructing the ultimate weight training program to build muscle, exercise selection is a very important component. You build muscle fastest with compound weight training exercises. Any bodybuilding program that focuses on machines and isolation weight training exercises is a complete waste of time.

Below are the worst weight training exercises on the planet and should be avoided at all costs if you want to build muscle fast.

1) Smith Machine Squats- Squats are the best weight training exercise you can do in order to build muscle fast. Doing them on a Smith machine however, is a huge mistake. Squatting in a Smith machine is very hard on the knees and causes the lifter to develop what is known as a pattern overload syndrome. The smith machine isolates the legs while taking the trunk out of the movement. In a normal free weight squat your lower back and abs must stabilize the weight and every muscle group must work in unison. This is how the body functions, as a unit, never in isolation. This can lead to severe imbalances and injuries.

2) Leg Extensions- Compound weight training exercises are the best muscle building exercises there are. Leg extensions are an isolation movement which do very little to build muscle. This movement also creates shearing forces on the knee and should be avoided at all costs.

3) Hack Squats- While squats are the superior muscle building exercise, this movement falls into the exact same category as the smith machine squat and should be avoided for all the same reasons.

4) Abduction/ Adduction machines- This is the one where you sit with your legs spread and strapped into the machine. You perform this weight training exercise by opening up or spreading your legs and then closing them. This is another isolation movement which will do nothing to build muscle. On top of that, you will look like a girl if you do it.

5) Abdominal Crunch Machines- The a

ould be avoided at all costs if you want to build muscle fast.

1) Smith Machine Squats- Squats are the best weight training exercise you can do in order to build muscle fast. Doing them on a Smith machine however, is a huge mistake. Squatting in a Smith machine is very hard on the knees and causes the lifter to develop what is known as a pattern overload syndrome. The smith machine isolates the legs while taking the trunk out of the movement. In a normal free weight squat your lower back and abs must stabilize the weight and every muscle group must work in unison. This is how the body functions, as a unit, never in isolation. This can lead to severe imbalances and injuries.

2) Leg Extensions- Compound weight training exercises are the best muscle building exercises there are. Leg extensions are an isolation movement which do very little to build muscle. This movement also creates shearing forces on the knee and should be avoided at all costs.

3) Hack Squats- While squats are the superior muscle building exercise, this movement falls into the exact same category as the smith machine squat and should be avoided for all the same reasons.

4) Abduction/ Adduction machines- This is the one where you sit with your legs spread and strapped into the machine. You perform this weight training exercise by opening up or spreading your legs and then closing them. This is another isolation movement which will do nothing to build muscle. On top of that, you will look like a girl if you do it.

5) Abdominal Crunch Machines- The

solates the legs while taking the trunk out of the movement. In a normal free weight squat your lower back and abs must stabilize the weight and every muscle group must work in unison. This is how the body functions, as a unit, never in isolation. This can lead to severe imbalances and injuries.

2) Leg Extensions- Compound weight training exercises are the best muscle building exercises there are. Leg extensions are an isolation movement which do very little to build muscle. This movement also creates shearing forces on the knee and should be avoided at all costs.

3) Hack Squats- While squats are the superior muscle building exercise, this movement falls into the exact same category as the smith machine squat and should be avoided for all the same reasons.

4) Abduction/ Adduction machines- This is the one where you sit with your legs spread and strapped into the machine. You perform this weight training exercise by opening up or spreading your legs and then closing them. This is another isolation movement which will do nothing to build muscle. On top of that, you will look like a girl if you do it.

5) Abdominal Crunch Machines- The

ises there are. Leg extensions are an isolation movement which do very little to build muscle. This movement also creates shearing forces on the knee and should be avoided at all costs.

3) Hack Squats- While squats are the superior muscle building exercise, this movement falls into the exact same category as the smith machine squat and should be avoided for all the same reasons.

4) Abduction/ Adduction machines- This is the one where you sit with your legs spread and strapped into the machine. You perform this weight training exercise by opening up or spreading your legs and then closing them. This is another isolation movement which will do nothing to build muscle. On top of that, you will look like a girl if you do it.

5) Abdominal Crunch Machines- The

p>4) Abduction/ Adduction machines- This is the one where you sit with your legs spread and strapped into the machine. You perform this weight training exercise by opening up or spreading your legs and then closing them. This is another isolation movement which will do nothing to build muscle. On top of that, you will look like a girl if you do it.

5) Abdominal Crunch Machines- The abs never work in isolation in the real world. In fact, the abs do not ever contract consciously. They contract unconsciously as a way to protect the spine. The abdominal muscles never work without the use of the hip flexors yet these isolation crunch machines are specifically designed to take the hip flexors out of the movement. For these reasons, this is a very ineffective weight training exercise for building muscle.

6) Ab Roller Devices- This apparatus is a version of the aforementioned crunch machines and is another useless piece of equipment. This device takes the neck completely out of the movement which is exactly what you don't want to do. Contracting and or flexing the muscles of the neck during an abdominal crunch is exactly what you want to be doing and is physiologically correct. Another waste of time in the quest to build muscle fast.

7) Smith Machine Bench Press- The bench press is a great muscle building exercise but doing it in the Smith machine is not a good idea. Much like the Smith Machine Squat, this exercise will cause you to develop a pattern overload and will lead to injury. Pressing on the Smith Machine isolates the pressing muscles and completely eliminates the use of the stabilizer muscles, such as the rotator cuff. This will lead to imbalances that can transfer to serious shoulder injuries. You can’t build muscle when you are injured.

8) Bench Dips- This is another weight training exercise that I did for many years and now regret. I routinely did this exercise with four 45 pound plates on my lap.